Because religion is a set of beliefs one voluntarily adopts and espouses, while race is something over which one has no control.
I really can't state it more simply than that. :shrug:
There you are then, you've only yourselves to blame. Insisting on "authentic" ethnic cuisine was always going to be the thin end of the wedge.
People will have supported most, probably even all, of that stuff at some point. Arguing that it is now a real problem simply because it's Islams doing it too is always going to be tricky.
That isnt really true though, is it. Someone is born muslim because their parents are muslim. Similarly one is born jewish because their parents are. What one does with that birthright is up to the individual.
It becomes even more muddled with the jews because they are both a race and a religion.
I am sorry, I just dont see the grand distinction.